<template>
  <el-container class="home-container">
    <!-- 头部 -->
    <el-header>
      <div>
        <img src="@/assets/img/shop-logo.png" alt="">
        <span>电商后台管理系统</span>
      </div>
      <el-button type="info" @click="logout">退出</el-button>
    </el-header>
    <!-- 主体 -->
    <el-container>
      <!-- 侧边栏 -->
      <el-aside :width="isCollapse?'64px':'200px'">
        <div class="toggle-button" @click="toggleCollapse">|||</div>
        <!-- 侧边栏菜单区域 -->
        <el-menu background-color="#333744" text-color="#fff" 
            active-text-color="#409bef" 
            unique-opened 
            :collapse="isCollapse" 
            :collapse-transition="false" 
            router
            :default-active="$route.fullPath"
        >
          <!-- 一级菜单 -->
            <!-- 注意：此处:index绑定一个string类型的字符串，所以加空字符串 -->
          <el-submenu :index="item.id+''" v-for="(item,index) in menusList" :key="item.id">
            <template slot="title" style="display: flex;justify-content: center;">
              <i :class="icon[index]"></i>
              <span>{{item.authName}}</span>
            </template>
            <!-- 二级菜单 -->
                <!-- menu开启router，此处以:index进行路由绑定 -->
            <el-menu-item :index="'/'+subItem.path" v-for="subItem in item.children" :key="subItem.id">
                <template slot="title">
                    <i class="el-icon-menu"></i>
                    <span>{{subItem.authName}}</span>
                </template>
            </el-menu-item>
          </el-submenu>
        </el-menu>
      </el-aside>
      <!-- 右侧内容 -->
      <el-main>
          <!-- 路由占位符 -->
          <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>

<script>
  export default {
    data() {
      return {
          menusList:'',
          isCollapse:false,
          iconList:{
              125:'iconfont icon-user',
              103:'iconfont icon-tijikongjian',
              101:'iconfont icon-shangpin',
              102:'iconfont icon-danju',
              145:'iconfont icon-baobiao',
          },
          icon:['iconfont icon-user','iconfont icon-tijikongjian','iconfont icon-shangpin','iconfont icon-danju','iconfont icon-baobiao']
      }
    },
    created() {
        this.getMenusList()
    },
    methods: {
      // 退出登录，清除token并返回login
      logout() {
        window.sessionStorage.clear('token')
        this.$router.push('/login')
      },
      // 请求菜单数据
      async getMenusList(){
          let {data:res} = await this.$http.get('menus')
          if(res.meta.status!=200) return this.$message.error(res.meta.msg)
          this.menusList=res.data
      },
      // 菜单的折叠与展开
      toggleCollapse(){
          this.isCollapse=!this.isCollapse
      },
    //   
    },
  }

</script>

<style lang="less" scoped>
  .home-container {
    height: 100%;
  }

  .el-header {
    display: flex;
    justify-content: space-between;
    padding-left: 0;
    align-items: center;
    color: #fff;
    font-size: 20px;
    background: #373d41;

    >div {
      display: flex;
      align-items: center;

      span {
        margin-left: 15px;
      }
    }
  }

  .el-aside {
    background: #333744;
    .el-menu{
        border-right: none;
    }
  }
  .el-mian {
    background: #eaedf1;
  }
  .iconfont{
      margin: 10px 10px 10px 3px;
  }
  .toggle-button{
      background: #4a5064;
      color: #fff;
      font-size: 10px;
      line-height: 24px;
      text-align: center;
      letter-spacing: 0.5em;
      cursor: pointer;
  }
</style>
